48
80%. This data is used for diagnostic and troubleshooting purposes. If the Throughput continues to run at less than 80%,
the cause of the low data transfer rates needs to be repaired.
BASE SATELLITES
The Base Satellites screen provides information about the
currently tracked satellites at the base station or NTRIP server.
The screen refreshes once per second. Each satellite tracked has
a unique PRN that is used to identify it. The SNR (Signal to Noise
Ratio or signal strength) for each PRN is shown on the graph. The
higher the bar, the higher the signal strength which in turn
means it is easier for the GeoSteer system to use that data for
position calculations.
To access the Base Satellites screen, select the GPS tab from the
main
AutoSteer Setup screen, press the RTK button, and then select Base Satellites from the list on the right. The information and
buttons available in the Base Satellites screen are:
Gray Arrows
—These arrows at the bottom of the screen allow the operator to move the PRN Selector across the Graph
which controls which PRN is active in the PRN Information Box.
Graph
—The graph shows the SNR of the various PRNs that are being tracked by the base station. The three horizontal
lines represent 25%, 50%, and 75% SNR with the top of the Graph representing 100%. The colors of the Bars are explained
in the PRN Information Box section.
PRN Selector
—This is the white box that surrounds an individual PRN on the Graph. This selector controls the information
shown in the PRN Information Box.
PRN Information Box
—This box updates to show the information for the satellite that the PRN Selector has highlighted.
PRN Information Box
Individual data for each PRN is provided at the bottom of the screen in the PRN Information Box. As the PRN Selector is
moved to each PRN, the data is updated. The information in the PRN Information Box is as follows:
Elevation
—This is the angle in degrees of the GPS satellite above the horizon (larger numbers mean the satellite is higher
in the sky).
L1 (Pink)
—This is the SNR for the L1 Band signal detected from the GNSS satellite (higher is better). The value next to L1:
represents the actual SNR level.
L2 (Red)
—This is the SNR for the L2 Band signal detected from the GNSS satellite (higher is better). The value next to L2:
represents the actual SNR level.
BASE STATION LOCATION
The Base Station Location screen displays information about the base station that the GeoSteer system is referencing. For
a GeoSteer system to share data with 3rd party devices, other software, and other GeoSteer systems, it requires that the
active base station has a surveyed position. This position is used to calculate the relative latitude and longitude positions
that are used for guidance lines and data collection.
Base stations using the INX protocol transmit their location and whether they have been surveyed to the GeoSteer system.
A base station that is surveyed in will always transmit the same latitude and longitude, however if the base station is not
surveyed in, the position transmitted will change slightly as the calculated position of the base station averages itself over
time. A properly set up base station should be allowed to survey in, however for some systems that process can take 24
hours or more to complete. Some operators prefer to start operating before that process has completed if the job is not
location critical. During the survey process the base station position transmitted will be constantly changed to reflect the
improved accuracy it calculates as time goes on.
The GeoSteer system keeps track of all the base stations it has encountered and the location that it originally received in
an internal database. This includes base stations that have not been surveyed in yet. The GeoSteer system uses the base